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Small Payload Fluid Servicing System

Degasser Assemblies

Three dual membrane (hydrophilic and hydrophobic), zero power, small volume and mass, liquid/gas separators are available. The gas/liquid separators can provide liquid/gas separation and fluid filtering at operating pressure at or below 10 psi and can be directly integrated into porous media based fluid systems requiring bubble free fluid (e.g. humidity control and nutrient delivery systems.)

Specifications	SPAFFS Degasser Assembly	1/2 SPAFSS Degasser Assembly	Super-Mini Degasser
Mass¹	292g	224g	~65g
Volume	720 cm³ (44 in³)	303 cm³ (18.5 in³)	120 cm³ (7.3 in³)
Dead volume	166 cm³ (10.1 in³)	81 cm³ (4.9 in³)	15 cm³ (0.92 in³)
Major dimensions (without fittings)	8.10 cm diameter x 14.00 cm (2.75 in diameter x 5.50 in)	8.10 cm diameter x 8.08 cm (2.75 in diameter x 3.18 in)	5.51 cm diameter x 4.93 cm (2.17 in diameter x 1.94 in)
Max operating pressure drop	10.0 psid	10.0 psid	10.0 psid
ΔP across degasser at water flow rate	0.35kPa (0.05 psid)@50ml/min 2.8kPa(0.40 psid)@120ml/min 5.9kPa(0.85 psid)@220ml/min	0.41kPa (0.06 psid)@50ml/min 3.5kPa(0.51 psid)@120ml/min 7.8kPa(1.14 psid)@220ml/min	5.2kPa (0.75 psid@70ml/min 8.3kPa(1.20 psid)@110ml/min 11.7kPa(1.70 psid)@150ml/min
Max allowable air flow²	>230 ml/min	>230 ml/min	>120 ml/min
Max allowable water flow³	>1000 ml/min	>1000 ml/min	>750 ml/min
Hydrophilic membrane surface area	3000 cm	1500 cm	500 cm

¹Mass of degasser assembly dry

²Estimate assuming 100% air input³Extrapolated numbers based on testing

Jeff Iverson, 608-827-5000 ext 2747